A sand washing and screening plant is a facility designed to clean natural or crushed sand by removing impurities (clay, silt, organic debris) and classifying it into specific size ranges. It ensures sand meets industry standards for construction, concrete production, or industrial applications.
Function:

  • Removes fine contaminants (dust, clay) from sand.

  • Sorts sand into uniform sizes (e.g., 0-2 mm, 2-4 mm).

  • Enhances concrete durability by producing high-quality sand.

  • Supports sustainability through water recycling systems.
    How It Works:

  1. Feeding: Raw sand is loaded into the plant via an excavator or conveyor.

  2. Pre-Screening: Vibrating screens remove oversized debris (rocks, roots).

  3. Washing:

    • Hydrocyclone: Uses centrifugal force to separate silt and clay.

    • Spiral Washer: Rotating spiral agitates sand with water for cleaning.

    • Bucket Wheel Washer: Rotating buckets wash and dewater sand.

  4. Dewatering: Vibrating dewatering screens or cyclones remove excess water.

  5. Final Screening: Clean sand is classified into fine and coarse fractions.

  6. Water Recycling: Wastewater is treated in settling ponds for reuse.
    Applications:

  • Concrete and mortar production (clean sand is vital for strength).

  • Glass manufacturing (requires high-purity silica sand).

  • Construction (plaster, screed, and brick production).

  • Golf courses and sports fields (prepared sand for surfaces).

  • Recycling (processing construction waste sand).